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Robert C. Keller

Criminal defense Attorney at Havertown, PA

5.0   4 reviews
  • Licensed for 44 years
    State PA
    Acquired 1979
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Robert

Learn Robert’s areas of practice.

Practice area
  1. Criminal defense
    I am a former Assistant District attorney with over 30 years of jury trial experience. I am a senior partner in a law firm and have tried homicide cases, sex crimes, drugs, DUI's, robberies, thefts and many other criminal cases in the surrounding counties including Philadelphia.

    45 years

Robert C. Keller was born in Chester, PA and raised in Delaware County. He graduated from Temple University achieving a Bachelor of Arts degree (English Major). Thereafter, he attended Temple University School of Law (now known as the James Beasley School of Law) and graduated in 1979 achieving a Juris Doctor degree.


As a newly graduated attorney, Robert C. Keller practiced law in the City of Chester with Joseph F. Battle, (then Mayor of the City of Chester), who eventually became the President Judge of the Delaware County Court of Common Pleas. During their years together, Mr. Keller concentrated his practice in civil litigation, real estate law, family law and bankruptcy.


In 1979, he was sworn in as an Assistant District Attorney in Delaware County, where he began his criminal law career prosecuting cases in the juvenile division. Soon thereafter, he moved to a trial team, ultimately becoming the team leader where he was responsible for managing other attorneys and staff. As an Assistant DA, he handled hundreds of jury trials and thousands of bench trials, including many high profile murder, rape, robbery, and burglary cases. When he retired from this position in 1988, as a special honor, his badge was also retired.

In 1988, after retiring as an Assistant DA, Mr. Keller opened his own private law practice in Media, followed by an office in Upper Darby. His practice focused on criminal law, personal injury law and family law. In 2003, he formed Keller, Lisgar & Williams, LLP where he has remained the Senior Partner.

Since that time, Mr. Keller’s practice has been limited exclusively to criminal defense. He has successfully tried and received not-guilty verdicts in thousands of cases throughout Delaware, Philadelphia, Chester, Bucks and Montgomery Counties.


In addition, he has tried countless matters in federal court. His trials have involved all misdemeanor and felony charges including but not limited to:

Juvenile Crimes, DUI Charges, Drugs & Controlled Substances, Assault & Battery, Terroristic Threats,Burglary, Robbery, Guns & Weapons, Homicide & Murder, Sex Crimes, Child Pornography, Internet Crimes,Appeals, Expungements, Probation & Parole Violations, Arson, Casino Crimes, Forgery, Fraud, Domestic Abuse, Child Abuse, Traffic Citations, and License Suspensions.

Mr. Keller has had the privilege of repeatedly presenting argument before the Superior Court of Pennsylvania. He is a member of the American and Pennsylvania Bar Associations and the Delaware County Bar Association, where he serves as the President of the Delaware County Association of Criminal Defense Lawyers.

Mr. Keller is married with three grown children and continues to be a prominent figure in his community. Currently he serves as the President of the Pennsylvania Academy of Ballet Society (where his daughters performed) and he is a board member and secretary for CASA Youth Advocates, Inc. He has served as a board member for the Delaware County Bar Association, as a council member in his local community, and as a board member of the Council of Services for the Aged (COSA). Today, he is an active member of the “Big Brothers/Big Sisters Society,” where he has become the proud big brother of “Little R.”

Additionally, he has lectured on various legal issues to attorneys fulfilling their continuing legal educationrequirements. As a member of the bar association, Mr. Keller sits as the chairman of arbitrations several times per year hearing civil matters and rendering awards.

Robert C. Keller is undeniably known in the legal community as an extremely aggressive and experienced criminal defense lawyer. He is at the top of his profession, consistently achieving favorable results for his clients. His trial preparation, tactics and strategies have proven invaluable to those accused of committing a crime time and time again. His dedication to protecting and preserving our fundamental rights is admirable.

Photos and videos


Keller Lisgar & Williams LLP
101 East Darby Road
Havertown, PA, 19083
Robert C. Keller
18 West Front Street
Media, PA, 19063
Robert C. Keller
Two Penn Center
Suite 200
Philadelphia, PA, 19102
Robert C. Keller
95 Almshouse Road
Suite 202
Richboro, PA, 18954
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5.0 / 5.0
  4 customer reviews
5 Star
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1 Star
Posted by Michael | March 28, 2016
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Review of Robert C. Keller
I have known and worked with Rob for many years. Rob is an excellent attorney with a sharp mind, good communication skills and is well-regarded among his peers in the legal community. I recommend him for these reasons in addition to what is possibly his finest quality, which is a true dedication to his client's best interests in all circumstances. I highly recommend Rob.
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Posted by Foday | September 10, 2013
Mr.Foday Massaquoi
Mr. Keller , is a very good lawyer, I had a very serious case and Robert was rite there by my side. His Assistant, she's the best u can get. His Law office is the very best. I am poor and I still got help from that office. If you have a problem or trouble of any kind , come see these people.
Posted by Laura | May 1, 2013
An Excellent Attorney
Robert Keller is a great attorney which I have had the fortunate mis-fortune to have represent my son. Mis-fortunate because what parent wants to need a defense attorney to represent their teenage son. However, Robert Keller demonstrated the upmost professionalism while also showing his concern for our situation. I have and will continue to recommend Robert Keller's services.
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Posted by John | December 20, 2012
From my layman point-of-view there was no basis for me to be arrested in the first place. I was not aware of how loose the technicalities were that the state could use to make a case, at least for an arrest. Once arrested I was becoming more convinced that I would have to go all the way to an expensive trial in order to defend myself. Without presenting me with unrealistic expectations, always giving me clear explanations and sometimes to my discomfort, making clear how law is conducted in the real world. Rob effectively defended me at the preliminary hearing and got the charges dropped. I can say that I trust Rob and feel his understanding of both sides of the criminal justice system in Pennsylvania was and continues to be very valuable in setting expectations, understanding what is happening, and most important, in forcing me to focus on what information really matters in a case.
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  • Free Consultation 30 minutes
Payment methods
Cash, Check, Credit Card


AVVO RATING 9.7 (Superb)

Work Experience

  • Senior Partner
  • Keller, Lisgar, & Williams, LLP
  • 2003 - Present
  • Sole Practitioner
  • Law Offices of Robert C. Keller & Associates
  • 1988 - 2003
  • Trial Team Leader
  • District Attorney's Office of Delaware County
  • 1979 - 1988
  • Law Clerk
  • Joseph F. Battle, Esquire
  • 1977 - 1985
View all work experience


  • Temple University - James E. Beasley School of Law
  • JD - Juris Doctor
  • 1979
  • Temple University
  • BA - Bachelor of Arts
  • 1976

Sample of Legal Cases

  • CW v ND
  • Jury found defendant Not Guilty
  • CW V FL
  • Client found not guilty of all charges after jury trial.
  • Cw v JD
  • Client found Not Guilty of all charges.
View all legal cases


  • Delaware County Bar Association
  • Member
  • N/A
  • Pennsylvania Bar Association
  • Member
  • N/A
  • American Bar Association
  • Member
  • N/A
  • Association of Trial Lawyers of America
  • Member
  • N/A
  • United States District Court for the Eastern District of Pennsylvania
  • Affiliate Member
  • N/A
  • United States Court of Appeals for the Third Circuit
  • Affiliate Member
  • N/A
  • United States Tax Court
  • Affiliate Member
  • N/A
  • United States Supreme Court
  • Affiliate Member
  • N/A
  • Delaware County Association of Criminal Defense Lawyers
  • President
  • N/A
  • Casa Youth Advocates
  • Member/Secretary
  • N/A
  • Pennsylvania Academy of Ballet
  • President
  • N/A
  • Council for Services of the Aged
  • Board Member
  • N/A
  • Radnor Citizens Cable Communications Council
  • Member
  • N/A
View all associations

Languages Spoken

  • English

Honors and Awards

  • Robert Keller
  • SuperLawyers
  • 2023
  • Top Ten Attorney Award
  • National Academy of Criminal Defense Attorneys
  • 2014
  • 2014 Top Attorney
  • Suburban Life Magazine
  • 2014
  • Outstanding Achievement in Pro Bono Representation
  • Legal Aid of Southeastern PA
  • 2013
  • Harvey Renwrick Memorial Community Service Business Award
  • GHS Civic Association
  • 2007
  • Floyd Chapman Memorial Community Service Award
  • GHC Civic Association
  • 2006
View all awards

Speaking Engagements

  • Delaware County Bench/Bar Conf.
  • Expert witness in coerced confession case
  • 2014
  • Criminal Law CLE
  • The New Expungement Law in Pa.
  • 2011

Attorney endorsements

Received (82)
Given (27)
Endorse Robert
Criminal defense Attorney | Oct 27
Relationship: Co-worker
"Not every trial lawyer is exceptional, but Robert Keller is. He is an expert trial attorney with more than 40 years of experience in obtaining not-guilty verdicts for his clients. His knowledge, skills, and courtroom strategies are priceless. He is confident, poised, and fearless. If you need a trial warrior to fight the prosecutors head-on, he is 100% your man."
Criminal defense Attorney | Jan 08
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Jan 07
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Nov 03
Relationship: Fellow lawyer in community
"I endorse Mr. Keller. His answers on Avvo demonstrate his legal skill and knowledge."
Criminal defense Attorney | Sep 28
Relationship: Other
"I endorse this lawyer."
Criminal defense Attorney | Sep 16
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Jul 08
Relationship: Other
"This attorney will work hard for you. He is a dedicated criminal defense attorney who will work hard and passionately for you to achieve the best result possible."
Criminal defense Attorney | Jul 06
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Jun 08
Relationship: Fellow lawyer in community
"I endorse this lawyer. Robert is a passionate and dedicated attorney with great knowledge of the law and its application to the client's case."
Criminal defense Attorney | Jun 05
Relationship: Worked for lawyer
"Rob is a terrific lawyer and a great advocate against the criminal justice system. He truly cares about each client (as I can attest from watching him practice for over three years) and has the skill and experience to obtain the best results possible."
Criminal defense Attorney | May 21
Relationship: Fellow lawyer in community
"I endorse Robert. He is a highly skilled attorney that is well respected in the legal community."
Criminal defense Attorney | May 20
Relationship: Fellow lawyer in community
"I endorse this lawyer. A highly skilled and respected lawyer in the legal community."
Criminal defense Attorney | Apr 21
Relationship: Fellow lawyer in community
"I endorse this lawyer. An outstanding and well respected attorney in the legal community. I would recommend him wholeheartedly to annyone needing legal representation."
Unknown Attorney | Feb 07
Relationship: Fellow lawyer in community
"I endorse this lawyer. It is clear by reading the answers in the AVVO community that this lawyer is a top notch attorney who is highly respected in the legal community."
Criminal defense Attorney | Jan 29
Relationship: Fellow lawyer in community
"Top-notch lawyer. Highly respected in the legal community."
Criminal defense Attorney | Jan 12
Relationship: Fellow lawyer in community
"I endorse Robert Keller. He is well known in the local courts as an outstanding criminal defense attorney."
Criminal defense Attorney | Sep 12
Relationship: Fellow lawyer in community
"Robert is not only one of the most knowledgeable criminal defense attorneys I know, but he is also one of the most compassionate attorney. I highly endorse him."
Criminal defense Attorney | Aug 20
Relationship: Fellow lawyer in community
"Mr. Keller is simply an exceptional attorney who I would recommend to everyone and anyone. I am a former judge, former magistrate, former prosecutor, and an attorney with 24 years of experience. I still learn from his answers on Avvo on a daily basis and I am constantly impressed."
Criminal defense Attorney | Jul 16
Relationship: Friend
"I endorse this lawyer."
Criminal defense Attorney | Jul 10
Relationship: Fellow lawyer in community
"I have followed Mr. Keller on Avvo for a while now, and I have been impressed with his knowledge of the law and the passion he brings to criminal defense. He obviously cares about people who are charged with criminal offenses. I endorse him."
View more endorsements
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